There's lots of capabilities that are being used that are being considered for the chop.
The problem with our SF is that they use the "HMG neither confirms nor denies..." line to avoid scrutiny from the outside world. The most powerful 2* in UK Forces doesn't face public reckoning, they are as bad as any other part of HM Forces for their cock-ups and they get away with. Yes, they can march long distances with heavy weights at high speeds, but as Mark Urban's TF Black shows, they run their lives entirely to their own satisfaction, which may, or may not, be the best way to aid the "conventional" forces tasks.